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Finding the Fourth Proportional to 226.20, 338.94 and 144.98

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Solution

The fourth proportional to 226.20, 338.94 and 144.98 is: 217.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.20 : 338.94 = 144.98 : x
  2. Step 2: Convert to fraction form
    226.20/338.94 = 144.98/x
  3. Step 3: Cross multiply
    226.20x = 338.94 × 144.98
  4. Step 4: Simplify right side
    226.20x = 49,137.83
  5. Step 5: Solve for x
    x = 49,137.83/226.20
  6. Step 6: Final answer
    x = 217.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.